Hermetically sealed refrigerating machine

Claim 1

IN A HERMETICALLY-SEALED REFRIGERATING MACHINE OF THE TYPE COMPRISING A HERMETICALLY-SEALED CAPSULE ADAPTED TO BE PLACED UNDER SUCTION PRESSURE HAVING AN INLET FOR REFRIGERATION TO BE DRAWN INTO SAID CAPSULE AND CONTAINING A COMPRESSOR UNIT COMPRISING MEANS DEFINING A CYLINDER AND HAVING A PRESSURE LINE LEADING THEREFROM AND CONTAINING A PISTON RECIPROCABLE IN SAID CYLINDER, A DRIVING MEANS FOR RECIPROCATING SAID PISTON IN SAID CYLINDER, MEANS DEFINING AN OIL SUMP ADAPTED TO CONTAIN A QUANTITY OF LUBRICATING OIL, MEANS CONNECTED TO SAID DRIVING MEANS FOR FORMING LUBRICATING OIL SPRAYS FROM THE OIL IN SAID PUMP TO LUBRICATE SAID DRIVING MEANS AND SAID PISTON, THE COMBINATION OF A PRESSURE MUFFLER DISPOSED IN THE INTERIOR OF SAID CAPSULE IN AN AREA REMOTE FROM SAID OIL SUMP AND FROM SAID COMPRESSOR UNIT, SAID MUFFLER BEING DISPOSED CONNECTED IN SAID PRESSURE LINE LEADING FROM SAID CYLINDER FOR RECEIVING REFRIGERANT AFTER COMPRESSION IN SAID COMPRESSOR UNIT AND BEING POSITIONED IN SPACED RELATION WITH RESPECT TO SAID CYLINDER AND THE OTHER COMPONENT OF SAID MACHINE, AND SAID PRESSURE MUFFLER BEING SHELTERED FROM SAID OIL SPRAYS PRODUCED BY SAID SPRAY-FORMING MEANS BY SAID CYLINDER AND OTHER COMPONENTS OF THE MACHINE.